Question 1

Quantization noise depends upon both sampling rate and number of quantization levels.

Accepted Answer

A) True 
 B)False

Question 2

For an AM transmitter, class C amplifier can be used after the modulation stage.

Accepted Answer

A) True 
 B)False

Question 3

What the main advantage of PCM?

Accepted Answer

A) can travel small distances 
B) higher bandwidth 
C) lower noise 
D) good reception 
A) can travel small distances 
B) higher bandwidth 
C) lower noise 
D) good reception

Question 4

If the peak message signal amplitude is half the peak amplitude of the carrier signal, the signal is_________modulated.

Accepted Answer

A) 100% 
B) 2% 
C) 50% 
D) 70% 
A) 100% 
B) 2% 
C) 50% 
D) 70%

Question 5

How is the performance of SSB AM systems in fading channels?

Accepted Answer

A) poor 
B) best 
C) good 
D) average 
A) poor 
B) best 
C) good 
D) average

Question 6

For which of the modulated system, the linear amplified modulated stage is used?

Accepted Answer

A) low level amplitude modulated system 
B) high level amplitude modulated system 
C) high level frequency modulated system 
D) low level frequency modulated system 
A) low level amplitude modulated system 
B) high level amplitude modulated system 
C) high level frequency modulated system 
D) low level frequency modulated system

Question 7

Function of duplexer in a RADAR is to permit the use of same antenna for transmission and reception.

Accepted Answer

A) True 
 B)False

Question 8

Increasing the data rate implies the increase in pulse width of digital symbol.

Accepted Answer

A) True 
 B)False

Question 9

One of the advantage of using a high frequency carrier wave is that it dissipates very small power.

Accepted Answer

A) True 
 B)False

Question 10

Companding is used in PCM transmitters to allow amplitude limiting in the receivers.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following FM demodulator is sometimes known as pulse averaging discriminator?

Accepted Answer

A) slope detection 
B) zero crossing detection 
C) quadrature detection 
D) phase locked discriminator 
A) slope detection 
B) zero crossing detection 
C) quadrature detection 
D) phase locked discriminator

Question 12

When noise is passed through a narrow band filter, the output of filter should be?

Accepted Answer

A) triangular 
B) square 
C) parabolic 
D) sinusoidal 
A) triangular 
B) square 
C) parabolic 
D) sinusoidal

Question 13

Single Sideband Modulation (SSB) is generally reserved for point-to-point communication.

Accepted Answer

A) True 
 B)False

Question 14

Frequency demodulator is a frequency to amplitude converter circuit.

Accepted Answer

A) True 
 B)False

Question 15

It is only the reflected color that decided the color of an object.

Accepted Answer

A) True 
 B)False

Quantization noise depends upon both sampling rate and number of quantization levels.

For an AM transmitter, class C amplifier can be used after the modulation stage.

What the main advantage of PCM?

If the peak message signal amplitude is half the peak amplitude of the carrier signal, the signal is_________modulated.

How is the performance of SSB AM systems in fading channels?

For which of the modulated system, the linear amplified modulated stage is used?

Function of duplexer in a RADAR is to permit the use of same antenna for transmission and reception.

Increasing the data rate implies the increase in pulse width of digital symbol.

One of the advantage of using a high frequency carrier wave is that it dissipates very small power.

Companding is used in PCM transmitters to allow amplitude limiting in the receivers.

Which of the following FM demodulator is sometimes known as pulse averaging discriminator?

When noise is passed through a narrow band filter, the output of filter should be?

Single Sideband Modulation (SSB) is generally reserved for point-to-point communication.

Frequency demodulator is a frequency to amplitude converter circuit.

It is only the reflected color that decided the color of an object.

Information Theory and Communication Techniques

Waveform Logic, Pcm Encoding, Vocoder Analysis, and Antenna Radiations

Microwave Communication and Modulation

M-Ary Signalling and Pulse Shaping Techniques

Signal Filtering and Equalization Techniques

Information Theory and Coding Techniques

Channel Coding and Error Correction Techniques

Algorithms and Techniques for Communication System Security and Error Correction

Modulation Schemes and Access Techniques for Spread Spectrum Systems

Digital and Analog Telecommunications Standards

Filters

Exam 1: Modulation and Demodulation Techniques

Quantization noise depends upon both sampling rate and number of quantization levels.

For an AM transmitter, class C amplifier can be used after the modulation stage.

What the main advantage of PCM?

If the peak message signal amplitude is half the peak amplitude of the carrier signal, the signal is_________modulated.

How is the performance of SSB AM systems in fading channels?

For which of the modulated system, the linear amplified modulated stage is used?

Function of duplexer in a RADAR is to permit the use of same antenna for transmission and reception.

Increasing the data rate implies the increase in pulse width of digital symbol.

One of the advantage of using a high frequency carrier wave is that it dissipates very small power.

Companding is used in PCM transmitters to allow amplitude limiting in the receivers.

Which of the following FM demodulator is sometimes known as pulse averaging discriminator?

When noise is passed through a narrow band filter, the output of filter should be?

Single Sideband Modulation (SSB) is generally reserved for point-to-point communication.

Frequency demodulator is a frequency to amplitude converter circuit.

It is only the reflected color that decided the color of an object.

Information Theory and Communication Techniques

Waveform Logic, Pcm Encoding, Vocoder Analysis, and Antenna Radiations

Microwave Communication and Modulation

M-Ary Signalling and Pulse Shaping Techniques

Signal Filtering and Equalization Techniques

Information Theory and Coding Techniques

Channel Coding and Error Correction Techniques

Algorithms and Techniques for Communication System Security and Error Correction

Modulation Schemes and Access Techniques for Spread Spectrum Systems

Digital and Analog Telecommunications Standards

Filters